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Structure and Composition of the Atmosphere

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Ryan Beaudry<br />Introduction to the Structure and Composition of Earths Atmosphere<br />

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Terms<br />Atmosphere-The gases, droplets, and particles surrounding Earth’s surface.<br />Weather-Day to Day conditions of the atmosphere.<br />Climate-The statistical properties of the atmosphere, including measures of average conditions, variability, etc.<br />Climatology-The study of long term atmospheric conditions.<br />

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ADDITIONS CONT.<br />Ozone Layer-Within the stratosphere where the gas, ozone, is abundant.<br />Mesopause-Very top of the mesosphere, continuing into the thermosphere.<br />Ionosphere-Extends from the upper mesopshere into the thermosphere.<br />

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Made up of:<br /> -Mixture of invisible gases<br /> -Large number of suspended microscopic particles and water droplets.<br />

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Relevant Terms<br />Homosphere-The lowest 80km of the atmosphere, which the relative abundance of the permanent gases is constant.<br />Heterosphere-The high atmosphere where gases are not well mixed but rather are stratified according to weight. Where lighter weighing gases are found.<br />

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Gases Making Up Atmosphere<br />Permanent Gases-Those gases whose relative abundance is constant within the homosphere.<br />Variable Gases-Gases present in amounts that vary greatly in abundance, either vertically, horizontal, or seasonal. Water vapor is the most important variable gas.<br />